body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
code,
form,
fieldset,
legend,
input,
textarea,
a,
p,
blockquote,
th,
td {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
fieldset,
img {
  border: 0;
}
address,
caption,
cite,
code,
dfn,
em,
i,
strong,
th,
var {
  font-style: normal;
  font-weight: normal;
}
ol,
ul {
  list-style: none;
}
/* 滚动条整体部分 */
::-webkit-scrollbar {
  width: 12px;
  height: 12px;
  background-color: #fff;
}
/* 滚动条中能上下移动的小块 */
::-webkit-scrollbar-thumb {
  border-radius: 8px;
  background-color: #858587;
}
